Two college girls rent an apartment off campus together, but they couldn't be more different. Little arguments escalate into an all-out war, and the presence of a boyfriend sends the feud over into a spiral of mutual hate ending in a deadly fight.

To make ends meet, a woman rents out a room in her home to a younger man. But when her finances are jeopardized, she invites a second man to live with them, creating a toxic mix of suspicion, accusations, rage, and murder.

A hospital worker invites a colleague (who's fallen on hard times) to come live with her. But the good deed backfires, and it only takes a few weeks before a stealthy betrayal turns into a gruesome crime.

A young woman craving independence moves out of her parents' house and in with her kind-hearted boss. But freedom comes with a price, and when she is unable to pay, she loses control, and more than one "innocent" is slaughtered.

A man rents out a room to an old buddy, but their contrasting living habits create chaos in the house. Tiny arguments turn into petty crimes, resulting in a vicious fight that turns deadly.

Two old friends reconnect when they end up renting a house a house together from an absentee landlord. But familiarity quickly turns into frustration, and an abusive relationship escalates to a violent death.

Roomies shift from friends to flirts to foes - as they inch closer and closer to a fatality.